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  1. [1,2,3,5,6,7,8,9].combination(4){|x| puts x.join(" ") }
Success #stdin #stdout 0.01s 8028KB
comments (?)
stdin 
Standard input is empty
stdout 
1 2 3 5
1 2 3 6
1 2 3 7
1 2 3 8
1 2 3 9
1 2 5 6
1 2 5 7
1 2 5 8
1 2 5 9
1 2 6 7
1 2 6 8
1 2 6 9
1 2 7 8
1 2 7 9
1 2 8 9
1 3 5 6
1 3 5 7
1 3 5 8
1 3 5 9
1 3 6 7
1 3 6 8
1 3 6 9
1 3 7 8
1 3 7 9
1 3 8 9
1 5 6 7
1 5 6 8
1 5 6 9
1 5 7 8
1 5 7 9
1 5 8 9
1 6 7 8
1 6 7 9
1 6 8 9
1 7 8 9
2 3 5 6
2 3 5 7
2 3 5 8
2 3 5 9
2 3 6 7
2 3 6 8
2 3 6 9
2 3 7 8
2 3 7 9
2 3 8 9
2 5 6 7
2 5 6 8
2 5 6 9
2 5 7 8
2 5 7 9
2 5 8 9
2 6 7 8
2 6 7 9
2 6 8 9
2 7 8 9
3 5 6 7
3 5 6 8
3 5 6 9
3 5 7 8
3 5 7 9
3 5 8 9
3 6 7 8
3 6 7 9
3 6 8 9
3 7 8 9
5 6 7 8
5 6 7 9
5 6 8 9
5 7 8 9
6 7 8 9
https://ideone.com/yh9l0B
language:
Ruby (ruby 2.5.5)
created:
13 days ago
visibility:
public

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